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Bio 255 Lab/Class
adf
21
Biology
Undergraduate 2
09/16/2014

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Term
Aprocrine Sweat Gland
Definition
Excrete special sweat of axillary and genital areas, after bacterai modify it, odorous sweat (milky).
Term
Arrector Pili Muscle
Definition
Raises hair when cold or in fear or excited.
Term
Dermal Papilla
Definition
Provides nutrients, etc. to the epidermis, connects dermis to epidermis.
Term
Dermis
Definition
Connects epidermis to underlying tissues. Provides sites for blood vessels, nerves, and epidermal appendages (hair follices, sweat glands, etc.).
Term
Eccrine Sweat Gland
Definition
Excrete sweat for cooling, heat regulation system.
Term
Epidermis
Definition
Coats body with expendable outer layer sloughed off, makes Vitamin D and melanin.
Term
Hair
Definition
Keeps you warm and sense of fine touch.
Term
Meissner's Corpuscle
Definition
Sense of fine touch.
Term
Pacinian Corpuscle
Definition
Sense of pressure.
Term
Sebaceous Gland
Definition
Oil (sebum) secretion for waterproofing/ lubricant.
Term
Stratum Basale
Definition
Mitosis, makes cells to replace epidermal cells, makes Vitamin D.
Term
Stratum Corneum
Definition
External epidermis, many layers thick in thick skin, dead cells sloughed off.
Term
Stratum Granulosum
Definition
Waterproofing with keratin, toughens to become corneum layer.
Term
Stratum Lucidum
Definition
Forms boundary between granulosum and corneum layers (only in thick skin).
Term
Stratum Spinosum
Definition
Contains immune cells, langerhans cells.
Term
Subcutaneous Layer
Definition
Underlying tissue, hidden by skin, muscle bone, etc. with specific functions.
Term
Neurons
Definition
Controls other cells by transmitting electrical signals and secreting neurotransmitters.
Term
Glial Cells
Definition
Supports neurons.
Term
Connective Tissue
Definition
Serves vital function in repair of all body tissues.
Term
Nervous Tissue
Definition
Sends and receives signals using neurons and conductivity.
Term
Muscle Tissue
Definition
Contract and produce most types of body movements.
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